This demonstration/activity introduces students to the concept of limiting reagent in a chemical reaction. Too often, students think that one can produce more product by using larger quantities of reactants. This demonstration/activity is specifically designed to surprise students and to make them appreciate the concept of stoichiometric quantities.
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WIND POWER AND THE GENERATION OF ELECTRICITY
Categories: Lab/Student Activity
Learning Goal: To make a simple motor and wind turbine that will produce an electric current when exposed to wind. read more
Teacher Demos: A. Digestive enzymes, B. Control of Breathing, C. Baroreceptor Reflex
Categories: Teacher Demonstration
These three demos allow students to experience applications of knowledge of the digestive, respiratory, and circulatory systems by doing very short activities on themselves. They also allow the... read more
Teacher Demo: Convection
Categories: Teacher Demonstration
This demo models how convection occurs in the atmosphere and hydrosphere by showing what happens at the interface of a hot fluid and a cold fluid. This simulates what happens when cold and hot air... read more
